I understand that turbulence is worse from crosswinds than from tail or headwinds. Or is this just another myth I picked up somewhere or other?
Turbulence in air either comes from changes in wind or thermals....
Therefore have a steady state wind (cross,tail or head) then you've got no turbulence. Have gusts, updrafts, wake or something else messing around with the air you are flying in then you'll have turbulence.
Its a bit like driving on the road...normally you feel nothing, hit a pocket of disturbance in the road (speed bump, pothole etc) and you'll feel a jolt.
Simples.
